Figure 1
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The dynamic spectrum showing the relative signal intensity as a function of time and of frequency for an observation of Cygnus A made by LOFAR station RS508 (located at 53.24°N; 6.95°E) on 14th July 2018 between 17:33 UT and 17:58 UT, and between 24.9 MHz and 64.0 MHz. The lowest frequencies are shown at the top of the plot. Horizontal white regions correspond to frequency channels removed due to significant radio frequency interference.
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